Network Coding Meets Multimedia: A Review

作     者：Magli, Enrico Wang, Mea Frossard, Pascal Markopoulou, Athina 

作者机构：Politecn Torino DET I-10129 Turin Italy Univ Calgary Dept Comp Sci Calgary AB T2N 1N4 Canada EPFL Signal Proc Lab LTS4 EPFL FSTI IEL LTS4 Stn CH-1015 Lausanne Switzerland Univ Calif Irvine Elect Engn & Comp Sci Dept Irvine CA 92697 USA 

出 版 物：《IEEE TRANSACTIONS ON MULTIMEDIA》 (IEEE Trans Multimedia)

年 卷 期：2013年第15卷第5期

页      面：1195-1212页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 08[工学] 0835[工学-软件工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Division Of Computer and Network Systems Direct For Computer & Info Scie & Enginr Funding Source: National Science Foundation 

主　　题：Distributed media systems error resilience multimedia communications network coding peer-to-peer video streaming wireless media 

摘      要：While every network node only relays messages in a traditional communication system, the recent network coding (NC) paradigm proposes to implement simple in-network processing with packet combinations in the nodes. NC extends the concept of encoding a message beyond source coding (for compression) and channel coding (for protection against errors and losses). It has been shown to increase network throughput compared to traditional networks implementation, to reduce delay and to provide robustness to transmission errors and network dynamics. These features are so appealing for multimedia applications that they have spurred a large research effort towards the development of multimedia-specific NC techniques. This paper reviews the recent work in NC for multimedia applications and focuses on the techniques that fill the gap between NC theory and practical applications. It outlines the benefits of NC and presents the open challenges in this area. The paper initially focuses on multimedia-specific aspects of network coding, in particular delay, in-network error control, and media-specific error control. These aspects permit to handle varying network conditions as well as client heterogeneity, which are critical to the design and deployment of multimedia systems. After introducing these general concepts, the paper reviews in detail two applications that lend themselves naturally to NC via the cooperation and broadcast models, namely peer-to-peer multimedia streaming and wireless networking.